AS6409

Provide specifications for hydraulic fluids used in landing gear shock struts. Some of this information was previously in AIR5358 however specifications should be in an AS. This new document will contain the appropriate specifications for premixed hydraulic fluid with additives believed to improve fluid performance and reduce friction.

Rationale:

This AS specification is intended to cover Landing Gear Shock Strut fluids that are pre-mixed with additives. Currently, no spec exists for pre-mixed Shock Strut Fluids.